There is currently a serial home invader here in Lakeland.. and my old apartment in Winter Haven was burglarized by a group of home invaders. They only waited until I left because "I looked crazy". That may be because they sent one to my door to see if I was home, and I answered the door wielding a battleaxe. That group had previously killed people.
I just don't believe in taking chances. Especially with your home. They WILL come back if you give them the opportunity. Next time, you may not know what hits you.